JPH107217A - Square bar rotating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mechanically automatically rotate a square bar around a core and relatively simplify a device constitution also minimize a device cost. SOLUTION: A device, providing a stopper 36 in the tip end side and having a slide surface 33 sliding a laterally mounted square bar W in its width direction till contact colliding with the stopper 36, is provided with a swivel table 30 pivotally supporting a base end side so that a down position lowered down from a horizontal and an up position raised from the down position can be selectively taken. The device is formed by providing a tumble means 40, when the swivel table 30 is swiveled from the up position to the down position, coming into contact with a location in a side of the stopper 36 from the center O as viewed in a width direction in a lower surface of the square bar W stopped by the stopper 36 to rotate the square bar W so as to roll it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timber rotating device for rotating a timber mechanically and automatically around a core. The present invention relates to a structure in which the surface on which the back split or the like is applied is rotated until it reaches a predetermined position in the front, rear, upper and lower directions.

[0002]

2. Description of the Related Art For example, rectangular long timber for construction (square lumber) having a rectangular cross section is used for inspection and processing of its outer peripheral surface, or for aligning it to dry and three-dimensionally. When inspecting and processing when stacking,
Alternatively, it is required to rotate around the core until the surface on which the spine is split or the like comes to a predetermined position in the front, rear, upper and lower directions.

[0003] When the work of rotating the square bar around the core is performed by hand as described above, much labor and time are required, the square bar is easily damaged, labor saving cannot be achieved, and the work efficiency is poor. Problems arise. Therefore, in order to mechanically and automatically rotate the timber, a timber rotation device has been considered in which both ends of the timber are held and rotated by clamping means such as a chuck.

[0004]

However, since the rotation outside diameter of the square bar is the length of the diagonal line larger than the width of the square bar, the square bar cannot be rotated with the square bar placed on a table or the like. Therefore, in the above-described conventional square member rotating device, in addition to the rotating means for holding and rotating both ends of the square member with a clamping means such as a chuck, the square member is vertically separated from a table or the like. A lift means and the like are required, and the apparatus configuration is complicated and the apparatus cost is high.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to mechanically and automatically rotate a square bar around a core, and to compare device configurations. It is an object of the present invention to provide a timber rotating device that can be simplified and the device cost can be reduced as much as possible.

[0006]

In order to achieve the above-mentioned object, a timber rotation device according to the present invention is for rotating a timber around a core, and comprises a swing table and a tilting means. The moving table has a stopper provided on the distal end side, a sliding surface for sliding the laterally mounted square bar in the width direction thereof until it comes into contact with the stopper, and a lowering position lower than horizontal and a lowering position than the lowering position. The base end side is pivotally supported so as to selectively take up the raised position, and the tilting means is stopped by the stopper when the swing table is swung from the raised position to the lowered position. It is characterized in that the rectangular member is rotated by contacting a portion on the stopper side from the center of the lower surface of the rectangular member when viewed in the width direction.

[0007] In a preferred aspect of the square member rotating device of the present invention, the tilting means selects an advancing state in which the square member is brought into contact and a retracting state in which the square member is not in contact with the square member in accordance with the vertical swing of the swing table. Is to be targeted. In another preferred aspect, a positioning means for moving and positioning the rectangular material carried on the swinging table in the longitudinal direction thereof is attached to the rectangular material rotating device.

[0008] In this case, a preferable mode of the positioning means is a conveyor for moving the rectangular material in a longitudinal direction thereof, and a predetermined direction along the transport direction of the conveyor, which selectively emerges and disappears above and below a transport surface of the conveyor. The conveyor includes a plurality of positioning stoppers arranged at intervals, and the conveyor and the positioning stopper cooperate with each other to center the square bar.

In the square member rotating device having the above-described configuration, when the swing table is lowered, the square member placed on the sliding surface automatically moves by gravity (natural fall), and is moved to the stopper. She slides down until she stops and stops. When the swing table is swung from the raised position to the lowered position in a state in which the square member is stopped by the stopper in this way, the tilting means is set to the forward state, and the tilting means is tilted. However, when the swinging table is moved downward, the lower surface of the square bar is brought into contact with a portion closer to the stopper than the center when viewed in the width direction.

With this arrangement, as the angle of depression of the swing table from the horizontal direction increases, the angle of the square member is set at the lower end of the square member opposite to the stopper, and the tilting means is brought into contact with the square member. Is the point of action,
When the swing table is swung to the lowered position, the swing table is rotated just 90 degrees about the center on the sliding surface of the swing table.

The square member rotated by 90 degrees in this manner is located on the sliding surface remote from the stopper, but since the swing table is at the lowered position, the square member is again gravity (natural). And falls down until it stops against the stopper. In this state, the surface that was the lower surface earlier becomes the front surface, for example, and is brought into contact with the stopper.

In order to further rotate the timber, the tilting means is set in a retracted state, the swing table is swung from a lowered position to a raised position, and then the tilting means is set in the forward state. The swing table is again swung from the raised position to the lowered position. Thus, similarly to the first time, the square bar is further rotated by 90 degrees (a total of 180 degrees), and the surface that was the lower surface first becomes the upper surface. If the third time is performed in the same manner as the second time, the square bar is further rotated 90 degrees (total 270 degrees),
The surface that was the lower surface first becomes the rear surface.

As described above, according to the rectangular bar rotating device of the present invention, the rectangular bar can be mechanically and automatically rotated by 90 degrees around the core, and the swing table and the tilting means having a very simple structure are provided. Since it is only necessary to provide the device, the device configuration is greatly simplified as compared with the conventional device, and the device cost can be kept as low as possible.

Further, by providing a positioning means for positioning the bar in the longitudinal direction to the bar rotating device, centering and the like of the bar can be automatically performed, and the bar is placed on the swing table with good balance. In addition to being able to be mounted, it can be adapted to different kinds of square members having different length dimensions, and furthermore, the convenience of the next step such as the alignment loading step can be achieved.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a timber rotation / alignment loading equipment 1 employing one embodiment of a timber rotation device according to the present invention.
Are schematically shown. In the illustrated example, the square rotation / alignment loading equipment 1 is located on the side where the square skeleton frame 2 is assembled in a rectangular parallelepiped shape (the right side in FIG. 1), and in the plan view (FIGS. 2 and 3) on the left and right in the direction of feeding the squares. A pair of timber rotating devices 3 and 3 of the present embodiment are disposed at a predetermined distance from each other, and a timber aligning and loading device 5 is provided on the upper portion of the frame 2.
A lifter 70 is disposed on the left side (on the side of carrying out the bar) with respect to the bar rotating device 3, and carry-out conveyors 80 are provided on both left and right sides below the lifter 70.

The square bar rotating devices 3 and 3 include, for example, a swing table 30 on which a square bar W having a square cross section and a lower surface E is applied and loaded in a horizontal direction, and an air cylinder 40 for tilting the bar. Have. 5, the swing table 30 is provided with a stopper 36 on the tip end side in the square bar feeding direction, and abuts the square bar W placed sideways on the stopper 36 in the feeding direction. Has a sliding surface composed of a number of rollers 33 arranged in the front-rear direction of the frame-shaped frame 32, and the extension portion 11 of the inclined base 11 provided on the support base 7.
a on the side where the timber is carried in (the lower side in FIGS.
(Right side in FIG. 3) so that the base end can be pivoted up and down with the base end on the pin 35 via the bracket 35A.
It is pivoted at.

A bracket 37 having a horizontally elongated hole 39 is attached to the lower surface of the swing table 30. The bracket 37 is vertically inserted into the elongated hole 39 of the bracket 37 on the support base 7 via a bracket 31A. Swing air cylinder 31 mounted in an upright position along the line
A pin 31b, which is fixed laterally, is slidably fitted to the distal end of the piston rod 31a. The swing table 30 is rotated by the air cylinder 31 at a predetermined angle (about 15 degrees) with respect to a horizontal plane. As described above, the lowered position (the position shown in FIG. 5) and the raised position (the position shown in FIG. 6) which is horizontal and are higher than the lowered position.
Is selectively taken.

The air cylinder 40 for tilting the bar is horizontally mounted and fixed on a fixing base 44, and a contact roller 42 is mounted on a distal end of a relatively long piston rod 40a protruding forward and backward of its main body. ing. According to the swinging direction of the swing table 30, the square cylinder tilting air cylinder 40 is configured to advance the contact roller 42 for projecting the piston rod 40a forward, and to retract the piston rod 40a backward. The retracted state of the contact roller 42 is selectively taken.

Here, when the swing table 30 is swung from the raised position to the lowered position, the air cylinder 40 for tilting the bar is set in the forward state and the piston rod 40a and the contact roller 42 are moved forward. 6 (imaginary line in FIG. 6), the contact roller 42 is stopped at the stopper 36 at the center O (see FIG. ), The tilting air cylinder 40 is set in the retracted state, and the piston rod 40a and the contact roller 42 are pulled backward (solid line in FIG. 6). So that it does not come into contact with the square bar W at the time of swinging.

On the other hand, the right and left positioning mechanism 10 provided in the square rotating device 3 is for moving and positioning the square W carried on the swing table 30 in the longitudinal (left and right) direction. As can be understood by referring to FIGS. 2, 3 and 4, the inclined table 11 provided on the support table 7 is mounted on the rectangular material loading side (the lower side in FIG. 2 and FIG.
, A roller conveyor having left and right elongated frame-shaped frames 12 attached at a predetermined angle (approximately 15 degrees) with respect to a horizontal plane with the right side up, and a plan view of the transfer surface of the roller conveyor (FIG. 2 and FIG. 3), three positioning stoppers 21, 22, 23, which are selectively provided up and down at the left end side portion and are disposed at predetermined intervals along the transport direction of the roller conveyor. I have.

The roller conveyors are arranged on the frame-shaped frame 12 at predetermined intervals along the length thereof, and are each inclined at the same angle (about 15 degrees) with respect to the horizontal plane as the frame-shaped frame 12. Five rollers 14, and these rollers 14 are connected by chain-type winding transmission mechanisms 17 and 18.
15 for synchronously rotating in the same direction via
It is composed of

The three positioning stoppers 21 and
2, 23 are positioning air cylinders 25,
The pistons 25, 25a, 25a are connected to the distal ends of the piston rods 25a, 25a, 25a (represented by the stopper 21 at the left end in FIG. 4).
When the piston rod 25a is protruded upward by operating one of the positioning stoppers 21,
The corresponding one of the rollers 2 and 23 protrudes above the transfer surface of the roller conveyor (the imaginary line in FIG. 4), and when the piston rod 25a is retracted, the positioning stopper 2
The corresponding one of 1, 22, 23 is drawn under the transfer surface of the roller conveyor (solid line in FIG. 4).

In such a positioning mechanism 10,
For example, as shown in FIG. 3, when carrying three types of square bars Wa, Wb, and Wc (Wa>Wb> Wc) having different lengths into the square bar rotating device 30, the square bars Wa,
The right end surfaces of Wb and Wc are adjusted to the right end reference plane P by a guide or the like (not shown) disposed on the front side in the feed direction. The square bars Wa and W thus carried in on the basis of the end surface.
b and Wc have their respective longitudinal centers deviated from the center line C of the equipment 1.

In order to match the longitudinal centers of the square bars Wa, Wb, Wc with the center line C,
While the swing table 30 is in the lowered position, when the longest square bar Wa is loaded on the swing table 30, the positioning stopper 21 at the left end is
When the second longest square bar Wb is loaded, the second positioning stopper 22 from the left is used. When the shortest square bar Wc is loaded, the innermost positioning stopper 23 is set above the transfer surface of the roller conveyor. The roller 14 of the roller conveyor is operated in this state.

As a result, the swing table 30 slides down on the sliding surface formed by the rollers 33 in the width direction due to gravity (natural fall) and is brought into contact with the stopper 36 to stop. The squares Wa, Wb, Wc are laterally transported to the left side in the longitudinal direction by the rollers 14 and are brought into contact with the corresponding ones of the positioning stoppers 21, 22, 23, and in this state, the squares are The longitudinal centers of Wa, Wb, and Wc are aligned with the center line C, whereby the roller conveyor and the positioning stoppers 21, 22, 23 cooperate to form the square members Wa, Wb, Wc. This means that the centering has been performed.

As described above, by attaching the positioning mechanism 10 to the square member rotating device 3, the square members W (Wa, Wa,
Wb, Wc) can be automatically centered or the like, and the square bar W can be placed on the swing table 30 in a well-balanced manner, and can be adapted to different types of square bars having different length dimensions. It is possible to further facilitate the next process such as the alignment loading process.

As described above, in the timber rotating device 3 of the present embodiment, as shown in FIG. 5, the swing table 30 is set at the lower position so that the swing table 30 is placed on the sliding surface including the rollers 33. The square timber W is gravity (natural fall)
Automatically slides down until it stops against the stopper 36.

As described above, the square bar W is connected to the stopper 36
Then, the swing table 30 is swung to the raised position as shown in FIG. In this state, when the square rod tilting air cylinder 40 is caused to move forward, the contact roller 42 attached to the distal end of the piston rod 40a moves the square rod as shown by a virtual line in FIG. Width at bottom of W (feed)
When viewed in the direction, it comes into contact with a portion on the stopper 36 side from the center O.

Next, when the swing table 30 is swung from the raised position to the lowered position, the contact rollers 42 of the air cylinder 40 for tilting the timber are moved downward by the lowering operation of the swing table 30. When viewed in the width direction on the lower surface of the square bar W, the lower portion of the square bar W is kept in contact with the portion on the stopper 36 side from the center O, so that the lowering angle of the swing table 30 from the horizontal increases. As shown in FIG.
Opposite to the stopper 36, with the lower surface end of the square bar W opposite to the stopper 36 as a fulcrum, and a portion of the square cylinder tilting air cylinder 40 where the contact roller 42 is in contact is set as an action point. When the swinging table 30 is swung to the lowered position, the swinging table 30 is rotated exactly 90 degrees around the center on the sliding surface of the swinging table 30 including the rollers 33. .

The square bar W thus rotated by 90 degrees is located on the sliding surface distant from the stopper 36. Since the swing table 30 is at the lowered position, the square bar W is It again slides down by gravity (natural fall) until it comes into contact with the stopper 36 and is stopped. In this state, the surface that was the lower surface (the surface on which the spine split E is applied) is, for example, the front surface, and is brought into contact with the stopper 36 (see FIG. 8).

In order to further rotate the bar W, the contact roller 42 of the bar tilting air cylinder 40 is set in the retracted state, and the swing table 3 is rotated.
0 from the lowered position to the raised position, and then the contact roller 42 of the square-tilt air cylinder 40 is set to the advancing state, and the swing table is again moved from the raised position to the lowered position. Rock it. As a result, similarly to the first time, the square lumber is further 90 degrees (a total of 18 degrees).
0 °), and the surface that was the lower surface first becomes the upper surface.

When the third turning operation is performed in the same manner as in the second time, the square bar is further turned 90 degrees (total 270 degrees).
It is rotated, and the surface that was the lower surface first becomes the rear surface.
As described above, in the timber rotation device 3 of the present embodiment, the timber W can be mechanically and automatically rotated by 90 degrees around its center, for example, so that the back split E can be aligned to the left front side, and Since it is only necessary to provide a swinging table and a tilting means having a very simple configuration, the configuration of the apparatus is greatly simplified as compared with the conventional apparatus, and the apparatus cost can be kept as low as possible.

On the other hand, as shown in FIG. 1, FIG. 2 and FIG. 9, the timber aligning and loading apparatus 5 disposed on the upper part of the frame 2 A pair of left and right traveling rails 45, 45 laid horizontally and in parallel so as to bridge between the lateral members 4, 4.
A pair of left and right guide rails 44, 44 laid outside and parallel to the running rails 45, 45, running guide rods 46, 46 laid on the upper surface side of the guide rails 44, 44, and the running rail 45, a pair of right and left traveling vehicles 50, 50 which are self-propelled while being guided on the guide rods 46, 46.

The traveling vehicles 50, 50 are respectively shown in FIG.
9 to 11 in addition to FIG.
A plate-like base 51, a traveling motor 52 and a pair of front and rear guide cylinders 58, 58 vertically suspended on the base 51, and the traveling rail 52 which is rotationally driven by the traveling motor 52 via a speed reducer 53; Wheels 5 that can be rolled on 45
4, 54, guide members 57, 57 slidably fitted to the traveling guide rods 46, 46, and a lifting air cylinder 55 for lifting and lowering a holder 60 described later.
And a pair of front and rear elevating guide rods 56, 56 of the holder 60 fitted into the guide cylinders 58, 58.
And the piston rod 5 of the air cylinder 55
5 a and an elevating plate 59 horizontally fixed to the lower ends of the elevating guide rods 56, 56, and a holder 60 attached to the elevating plate 59 for holding the square bar W. I have.

Then, the holder 60 is mounted on the lift plate 5
9, a vertical side portion 62b for receiving the rear surface of the square bar W, an L-shaped plate 64 fixed to the rear surface of the vertical side portion 62b, A fixed insertion / removal air cylinder 65 as a drive means for insertion / removal of a lateral side portion 67 described later, an inverted L-shaped connecting plate 66 attached to a tip end of a piston rod 65a of the removal / insertion air cylinder 65, Connecting plate 6
6, a receiving position (solid line position in FIGS. 10 and 11) for receiving the lower surface of the square bar W, and a extracting position (virtual line position in FIGS. 10 and 11) for extracting from the lower surface of the square bar W. And a lateral side portion 67 which can take the following.

The lifter 70 is for loading the square bar W, as can be clearly understood from FIGS. 1, 2 and 9, and is a lifting platform which can be raised and lowered by driving means (not shown). 72, and four X-shaped pantograph-type front, rear, left and right leg members 74 for supporting the same, and the elevating table 72 always sets the loading height position of the square bar W by the square bar alignment loading apparatus 5. In order to keep it constant, every time the number of loading stages of the bar W increases, the bar W is lowered by the vertical dimension, and when the bar W is loaded a predetermined number of steps in a rectangular parallelepiped shape as a whole, it is lowered to the lowest position. Can be

When the elevating table 72 is lowered to the lowest position, the group of square members stacked in a predetermined number of steps in a rectangular parallelepiped as a whole is carried out by the carrying-out device 80 to the next step.
2 and 9, the unloading device 80 includes a pair of left and right conveyors 84,
These conveyors 84, 84 are driven by a take-out motor 82 so that a winding transmission mechanism 83 and a drive shaft 8
5 are driven synchronously.

In the rectangular material aligning and loading apparatus 5 having the above-described configuration, when performing the aligning and loading of the rectangular materials W,
As shown in FIG. 10, the swing table 30 is in a horizontal raised position, and the traveling carriages 50, 50 are in contact with the stoppers 36 on the swing table 30 with the front surface in the feed direction. To the position just above the square bar W that has been stopped at the same time, and actuates the air cylinder 65 for insertion and removal of the holders 60, 60 so that the piston rod 65a protrudes rearward. 67 is set to the extraction position drawn backward as shown by a dashed line in FIG.

In this state, the traveling carriages 50, 50 and the lifting / lowering air cylinders 55, 55 are slightly moved to adjust the positions of the holders 60, 60 in the vertical direction (vertical direction) and the front-rear direction (horizontal direction). Then, the vertical portions 62b of the holders 60, 60 are brought into contact with the rear surface of the square bar W to be received.

The positions of the traveling vehicles 50, 50 and the holders 60, 60 are adjusted, for example, by adjusting the traveling vehicles 5
0,50, running rails 45,45, guide rails 4
4, 44, a position sensor such as a visual sensor or a linear encoder is provided on the guide rods 46, 46, etc., and a visual sensor for detecting the position of the square bar W on the holder 60, etc.
If position detecting means such as pressure-sensitive sensors are provided, and based on signals obtained from the position detecting means, the traveling direction of the traveling vehicle 50, the traveling amount, the elevation position of the holder 60, and the like are adjusted. Good.

Next, the air cylinder 6 for insertion and removal
5 is operated to retract the piston rod 65a,
The lateral side 67 of the holder 60 is changed from the extracting position to the receiving position (the solid line position in FIGS. 10 and 11). As a result, the lateral side portion 67 protrudes forward, is inserted under the lower surface of the square bar W and is opposed thereto, and when the holding tool 60 is pulled up in this state, the square bar W is It is put on top and lifted.

Subsequently, the traveling vehicles 50, 50 are
As shown in FIG. 1, it is moved to the next timber alignment loading position. Here, in the present embodiment, the lift 72
The rectangular bars W are stacked in a predetermined number of steps in a rectangular parallelepiped shape. In this case, when the loading of the ten rows (ten) of the rectangular bars W in each stage is completed, a beam supply (not shown) is placed on the ten rectangular bars W. Three bars G, G, G are supplied and arranged from the device so as to be orthogonal to the bar W. Thereafter, the bar W of the next stage is placed on the bars G, G, G at the front end side (the left end in FIG. 11). Side), and are sequentially loaded at a predetermined interval α behind the square bar W placed earlier.

Accordingly, the next timber aligned loading position by the traveling carriage 50 is a position rearward by a predetermined distance α from the rear surface of the timber W on which the next timber W is placed first.
The traveling carriages 50, 50 are moved to the next square bar alignment loading position, and then the traveling carriages 50, 50 and the lifting / lowering air cylinders 55, 55 are slightly moved, so that the holders 60 are moved.
Adjust the vertical (vertical) and front-rear (horizontal) positions of. Thereby, the side portion 6 of the holder 60 is
7 is located near the upper surface of the bars G, G, G.

Subsequently, the air cylinder 6 for insertion / removal
5 is operated to pull the lateral side 67 of the holder 60 rearward to change from the receiving position to the extracting position. In this case, when the lateral side portion 67 is pulled in, the rectangular member W is moved by the frictional force between the lateral side portion 67 and the lower surface of the rectangular member W.
Try to be pulled in the pulling direction (width direction)
Since the rear surface of the square bar W is in contact with the vertical side portion 62b, the square bar W does not move in the retraction direction (rearward direction) of the horizontal side portion 67, and maintains the position as it is.

Thus, the side portion 67 of the holder 60 is
Are held in a proper alignment with a predetermined interval α from the rear surface of the previously placed square bar W and are loaded. After that, the holder 60 is pulled up to move the traveling trolley 50 to the next timber receiving position, and thereafter, the same operation as described above is repeated.

In the above-described embodiment, the square bars W are formed so as to form a gap α between the front and rear surfaces of the adjacent square bars W, W.
Although it is loaded, it is not always necessary to form the gap α as described above, and in the square bar aligning and loading apparatus 5 of the present embodiment, the holding member 60 only contacts the lower surface and the rear surface of the square bar W to form the square bar W. Since there is no obstruction on the front side at all,
As shown in FIG. 12, it is also possible to pack square members W, W adjacent to each other in front and rear without forming a gap α between the front and rear surfaces thereof.

As described above, in the box material aligning and loading apparatus 5 according to the present embodiment, the side member 67 of the holder 60 is inserted into and removed from the lower side of the lower surface of the box member W, so that the box member W is inserted into the holder 60. And when the horizontal side portion 67 is pulled out from the lower surface of the rectangular bar W, the movement of the rectangular bar W in the width (rear) direction is caused by the vertical side portion 62b. The square bars are loaded into the proper position, and the square bars with rough surfaces cannot be held and transported by the conventional square bar aligning and loading device with the vacuum suction type holder. It can be held and transported, and does not create a gap between the front and rear surfaces of adjacent bar members, which is not possible with a bar-alignment loading device equipped with a holding type holding device that presses and holds the front and rear surfaces of the bar members. Stuff them with And it can also be.

When the lateral side 67 is pulled out from the lower surface of the rectangular bar W, the movement of the rectangular bar W in the width (rear) direction is caused by the vertical side 62b.
Therefore, for example, even in the case of stacking by directly contacting the upper surface and the lower surface of the timber without using a bar, etc., even if the timber W is properly aligned without causing displacement or the like. It becomes possible to load. As described above, one embodiment of the present invention has been described in detail. However, the present invention is not limited to the above-described embodiment, and various designs may be made without departing from the spirit of the invention described in the claims. Can be changed.

For example, in the above embodiment, the case where the timber is a long piece of wood having a rectangular cross section (square) has been described. However, the timber rotation device of the present invention is limited to the above-described timber shape and material. For example, it is needless to say that the present invention can be applied to, for example, a rod having a rectangular cross section, or a rod or a tube made of metal or synthetic resin.

[0050]

As will be understood from the above description, according to the bar rotation device of the present invention, the bar can be mechanically and automatically rotated around the core by a predetermined angle.
It is only necessary to provide an extremely simple swing table and tilting means, so that an excellent effect is obtained that the apparatus configuration is greatly simplified and the apparatus cost is kept as low as possible compared to the conventional one. Can be In addition, by providing a positioning means for positioning the bar in the longitudinal direction to the bar rotating device, centering and the like of the bar can be automatically performed, and the bar can be placed on the swing table with good balance. At the same time, it is possible to cope with different kinds of square bars having different length dimensions, and furthermore, the convenience of the next step such as the alignment loading step can be achieved.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an example of a timber rotation / alignment loading facility using an embodiment of a timber rotation device according to the present invention.

FIG. 2 is a plan view of the timber rotation / alignment loading facility of FIG. 1;

FIG. 3 is a view taken in the direction of the arrow III in FIG. 1;

FIG. 4 is an enlarged sectional view taken along the line IV-IV in FIG. 2;

FIG. 5 is an enlarged sectional view taken along the line VV of FIG. 2;

FIG. 6 is a diagram which is used for describing the operation of the square bar rotating device shown in FIG.

FIG. 7 is a diagram which is used for describing the operation of the bar rotation device shown in FIG.

FIG. 8 is a diagram which is used for describing the operation of the square bar rotating device shown in FIG.

FIG. 9 is a view taken along the line IX-IX in FIG. 1;

FIG. 10 is a diagram which is used for describing the operation of the rectangular timber aligning and loading apparatus shown in FIG.

FIG. 11 is a diagram which is used for describing the operation of the rectangular timber aligning and loading apparatus shown in FIG.

FIG. 12 is a diagram which is used for describing another operation of the square bar aligning and loading apparatus shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 Square material rotation / alignment loading equipment 3 Square material rotation device 5 Square material alignment loading device 10 Positioning means 11 Roller (conveyor) 21, 22, 23 Positioning stopper 30 Swing table 33 Roller (sliding surface) 36 Stopper 40 Tilt air cylinder (Tilting means) W square bar O width center of square bar

Claims (4)

[Claims] 1. A bar rotation device 3 including a swing table 30 for rotating a bar W around a center thereof and a tilting means 40.
In the above, the swing table 30 has a stopper 36 provided on the distal end side, and a sliding surface 33 that slides the laterally mounted square bar W in the width direction thereof until it comes into contact with the stopper 36, and The base end is pivotally supported so as to be able to selectively take a lowered position and a raised position higher than the lowered position.
Is swung from the raised position to the lowered position, the rectangular material W stopped by the stopper 36 abuts on a portion of the lower surface of the rectangular material W closer to the stopper 36 than the center O when viewed from the center O in the width direction. A timber rotating device characterized by rotating. 2. The tilting means 40 selectively takes an advancing state in contact with the square bar W and a retracted state in which it does not contact the square bar W in accordance with the vertical swing of the swing table 30. 2. The timber rotation device according to claim 1, wherein the timber is rotated. 3. The square bar rotating device 3 further includes a positioning means 10 for moving and positioning the square bar W carried on the swing table 30 in the longitudinal direction thereof. Or the square material rotation device of 2. 4. The positioning means 10 comprises: a conveyor 14 for moving the square bar W in a longitudinal direction thereof; and a predetermined direction along a transfer direction of the conveyor 14 which selectively appears and disappears above and below a transfer surface of the conveyor 14. A plurality of positioning stoppers 21, 22, 23 disposed at intervals, and the conveyor 14 and the positioning stoppers 21, 22, 2
The square bar rotation device according to claim 3, wherein the square bar W is centered in cooperation with the square bar W.